- Exam
- JEE Main
- Year
- 2022
- Date
- 27 July
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Aldehydes and Ketones
JEE Main 2022 · 27 July · Evening Shift · Chemistry · Aldehydes and Ketones
Match List-I with List-II. List-I List-II A I Gatterman Koch...
Match List-I with List-II.
| List-I | List-II | ||
| A | | I | Gatterman Koch reaction |
| B | | II | Etard reaction |
| C | | III | Stephen reaction |
| D | | IV | Rosenmund reaction |
Choose the correct answer from the options given below
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
Benzoyl chloride is hydrogenated over catalyst, palladium on barium sulphate. This reaction is called Rosenmund reduction.
Nitriles are reduced to corresponding imine with stannous chloride in the presence of hydrochloric acid, which on hydrolysis give corresponding aldehyde.
This is named as Stephen reaction
Use of Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde.This is called etard reaction
When benzene or its derivative is treated with carbon monoxide and hydrogen chloride in the presence of anhydrous aluminium chloride or cuprous chloride, it gives benzaldehyde or substituted benzaldehyde.
This is called Gattermann-koch reaction.The mechanism of this reaction is electrophilic substitution.